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Summer moisture changes in the Lake Qinghai area on the northeastern Tibetan Plateau recorded from a meadow section over the past 8400 yrs
Li, Xiangzhong1; Liu, Xiangjun2; He, Yuxin3; Liu, Weiguo1,5; Zhou, Xin4; Wang, Zheng1
2018-02-01
发表期刊GLOBAL AND PLANETARY CHANGE
卷号161页码:1-9
文章类型Article
摘要Holocene climatic and environmental changes on the northeastern Tibetan Plateau (TP) have been widely discussed based on the climatic records from sedimentary cores. However, differences in the reconstructed climatic history from various studies in this region still exist, probably due to influence of climatic proxies from multiple factors and the chronological uncertainties in lacustrine sediments. Here we present records of terrestrial plant delta C-13, soil color and total organic carbon content over the past 8400 years from a well-dated meadow section on the northeastern TP. The terrestrial plant delta C-13 value serves as a good summer precipitation/moisture indicator in the studied region. Soil color property and TOC content are also able to disentangle the moisture evolution history. All the data show much wet climates at 8400-7400 cal yr BP, dry climates at 7400-6000 cal yr BP and then wet conditions with fluctuation at 6000-3200 cal yr BP. Late Holocene moisture appears to be comparable with moist conditions from 6000 to 3200 cal yr BP. By further comparing the climatic variations in the Lake Qinghai area with records of the reconstructed summer temperature and the Asian Monsoon precipitation, we believe that the pattern of moisture/precipitation evolution in the Lake Qinghai area was not completely consistent with regions around Lake Qinghai, probably due to complicated interaction between the East Asian Summer Monsoon and the Indian Summer Monsoon.
关键词Plant Delta C-13 Summer Monsoon Mid-holocene Northeastern Tibetan Plateau Lake Qinghai
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CARBON-ISOTOPE DISCRIMINATION ; ASIAN MONSOON ; ORGANIC-CARBON ; LEVEL CHANGES ; PALEOVEGETATION RECONSTRUCTION ; OSTRACOD ASSEMBLAGES ; CLIMATIC-CHANGE ; OXYGEN-ISOTOPE ; NORTH CHINA ; HOLOCENE
收录类别SCI
语种英语
WOS研究方向Physical Geography ; Geology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:000424854000001
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6430
专题青海盐湖研究所知识仓储
盐湖地质与环境实验室
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Peoples R China
3.Zhejiang Univ, Sch Earth Sci, Hangzhou 310027, Peoples R China
4.Univ Sci & Technol China, Sch Earth & Space Sci, Inst Polar Environm, Hefei 230026, Anhui, Peoples R China
5.Xi An Jiao Tong Univ, Sch Human Settlement & Civil Engn, Xian 710049, Peoples R China
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GB/T 7714
Li, Xiangzhong,Liu, Xiangjun,He, Yuxin,et al. Summer moisture changes in the Lake Qinghai area on the northeastern Tibetan Plateau recorded from a meadow section over the past 8400 yrs[J]. GLOBAL AND PLANETARY CHANGE,2018,161:1-9.
APA Li, Xiangzhong,Liu, Xiangjun,He, Yuxin,Liu, Weiguo,Zhou, Xin,&Wang, Zheng.(2018).Summer moisture changes in the Lake Qinghai area on the northeastern Tibetan Plateau recorded from a meadow section over the past 8400 yrs.GLOBAL AND PLANETARY CHANGE,161,1-9.
MLA Li, Xiangzhong,et al."Summer moisture changes in the Lake Qinghai area on the northeastern Tibetan Plateau recorded from a meadow section over the past 8400 yrs".GLOBAL AND PLANETARY CHANGE 161(2018):1-9.
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